I’ve been once! I cannot stress how much you NEED to make sure the airport knows you need an aid to get to your next gate. It took about 45m to get an aid despite having it already on my ticket AND calling right before my flight left to remind them. They are understaffed so its important to ask the attendant on board for help with checking for that.

Don’t leave the first plane until someone comes and gets you. After that make it clear they have to come check in on you every half hour. You should be fine. United was pretty good.

Not blind, but O'hare is VERY large. It can take more than half an hour to walk from some terminals to others for sighted people like myself. It's likely you won't have to go far if both your flights are United though. But even with wheelchair or oversized golf cart assistance you should note that travel time will be longer than usual.

If you want a local treat I recommend shelling out $10 for Chicago mix popcorn from Garrett('s). There may be a short line (no more than 10 minute wait though).

I haven't flown through O'Hare in 35 years, but from what I remember, every gate you need is at the furthest point possible from the gate where you landed. Wear comfortable walking shoes.

I've flown United through lots of different airports since going blind. They've always been respectful and helpful.

When you get your tickets you'll actually receive two, one from wherever you're starting to O'Hare, and a second one from O'Hare to wherever you're heading to. The second ticket will have the gate number at O'Hare printed on it, so you'll know before you even land in Chicago what gate you have to go to. I generally just show my ticket to the passenger sitting next to me and ask them to read the gate number to me so I know where to go to. Many of the passengers offer to walk there with me. People are good.

If you sit next to someone in a hurry who doesn't have time to walk you to the next gate, the airline gate employees can help you when you exit the airplane. Each airline has a wheelchair plan of action, an employee (usually the new guy) whose job it is to push you in a wheelchair to the next gate so you can make your connection. Just tell them you don't want to actually ride in the wheelchair, but you need an airline employee to help you navigate to the next gate. I had one girl who wouldn't take "no" for an answer and so I sat in her wheelchair and went all over the Denver airport that way. New guys, right? Their protocols override their common sense.

If that doesn't work, an airport employee (not an airline employee) can help. They all have radios and if they don't have time to walk you there they'll call security to do it.

ORD United uses B and C gates with escalators and moving walkway between them. Especially if you have to go between B and C get help.

I would get a united club daypass or sit in a restaurant with that layover. The ORD United club staff are pretty good with visual impaired